The study aimed to investigate the mediating effects of training and EI on the performance of UPF officers with specific reference to analyzing the: effect of training on the performance of UPF officers; effect of EI on the performance of UPF officers.; mediating effect of EI on the relationship between training and performance of UPF officers and; the mediating effect of training on the relationship between EI and performance of UPF officers. This study used a cross-sectional study design with quantitative methods on the officers. By Krejcie & Morgan (1970) a sample of 139 was selected from a population of 290. The study employed a combination of quantitative data collection methods and objectives examined using linear regression models and mediation was carried out using Hayes Process Macro analysis in SPSS22. The null hypothesis that there is a significant positive effect of officer training on the performance of officers and when training is improved, performance will automatically improve was accepted. The null hypothesis that there is a significant positive effect of training on the performance of police officers was accepted (β = 0.207; p<0.05); the null hypothesis that there is a significant positive effect of EI on the performance of officers (β = 0.528; p<0.05) was accepted. Secondly, the null hypothesis that there existed a FULL mediating effect of EI in the relationship between training and officer performance was accepted. In conclusion, UPF should improve the training and also improve their recruitment screening process so as to hire emotionally intelligent officers.